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Dell PowerVault MD 32XX/36XX Series Storage Arrays CLI Guide

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Assigning Global Hot Spares

Hot spare physical disks can replace any failed physical disk in the storage array. The hot spare must be the same type of physical disk as the physical disk that failed and must have capacity greater than or equal to any physical disk that can fail. If a hot spare is smaller than a failed physical disk, the hot spare cannot be used to rebuild the data from the failed physical disk. Hot spares are available only for RAID levels 1 or 5.
You can assign or unassign global hot spares by using the set physicalDisk command. To use this command, you must perform these steps:
  1. Identify the location of the physical disks by enclosure ID and slot ID.
  2. Set the hotSpare parameter to TRUE to enable the hot spare or FALSE to disable an existing hot spare.
The following syntax is the general form of the command:
set (physicalDisk [enclosureID,slotID] |
                                 physicalDisks [enclosureID0,slotID0 ...
                                 enclosureIDn,slotIDn] hotSpare=(TRUE | FALSE)
                              
The following example shows how to use this command to set hot spare physical disks:
client>smcli 123.45.67.89 -c "set physicalDisks
                                 [0,2 0,3] hotSpare=TRUE;"
                              
Enter the enclosure ID and slot ID of each physical disk that you want to use. You must put brackets ([ ]) around the list. Separate the enclosure ID and slot ID of a physical disk by a comma. Separate each enclosure ID and slot ID pair by a space.

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